Fuel economizer



Dec. 19,1922. 1,439,575. T. PITSAN S.

FUEL ECONOMlZER.

FILED SEPT. 10.'192|.

Patented Dec. 19, 1922.

THOMAS PITSANIS, 0E AMBRIDGE, PENNSYLVANIA.

I rent. ECONOMIZER.

Application filed September 10, 1921.

T 0 all whom it may concern:

Be it known that I, THOMAS PrrsANIs, a citizen of the United States,residing at Ambridge, in the county of Beaver and State of Pennsylvania,have invented new and useful Improvements in Fuel Economizers, of whichthe following is a specification.

This invention relates to improvements in fuel economizers and has foran object the provision of a device which may be attached to a stove orother heating element for the purpose of decreasing the amount of fuelconsumed and increasing the heat furnished, by a given amount of fuel.

To this end, the invention contemplates the provision of means which maybe at tached to the stove or heater as a unit, for regulating the draft,so as to control the fire and for retarding the upward passage of heatthrough the smoke pipe or flue, whereby, said heat instead of beingwasted, may be utilized for any purpose desired.

With the above and other objects in view, the invention further includesthe following novel features and details of construction, to behereinafter more fully described, illus trated in the accompanyingdrawings and pointed out in the claim hereto appended.

In the drawings Figure 1 is an elevation showing the top portion of astove with the invention applied;

F igure'2 is a vertical sectional view of the same;

Figure 3 is a transverse section;

Figure 4; is a detail bottom plan view of the heat retarding member,showing the apertured disc carried thereby.

Referring to the drawings in detail, wherein like characters ofreference note corresponding parts, the reference character 10 indicatesthe top portion of a stove or similar member, which is equipped with asmoke pipe or flue 11.

The invention which is adapted to be included as a part of the fine,comprises a casing 12, having a top 13 and bottom 13 the top beingremovably secured to the casing by flange 14. the latter telescopingwithin the ends of the casing. Both the top and bottom are provided withan opening, from which extends a collar or thimble 15 for the purpose ofsecuring the casing 12 within the smoke pipe. It is preferred toposition the Serial No. 499,656.

casing a short distance above the top of the stove.

Located within the casing 12 is a partition 16 which is substantiallysemi-circular in cross section and is attached to the inner walls of thecasing 12 so as to provide an inner passage of circular sectional shapewhich is open at both the top and bottom.

Located within this inner passa e is a heat retarding member in the form0 a central shaft or standard 17 which is hollow throughout its length.This standard is surrounded by a spiral strip 18 which extendsapproximately from one end of the standard to the other and has itsouter edges in contacting engagement with the walls of the innerpassage. The bottom of the standard 17 is surrounded by an apertureddisc 19 and this disc together with the spiral strip 18 act as a battleto retard the passage of heat through the inner casing.

The space between the wall of the inner passage and the inner wall ofthe casing forms a draft passage and this passage is regulated by meansof a damper 20, which is mounted upon a pivot 21. This pivot extendsthrough the casing 12 and has secured upon one end an arm 22, from eachend of which extend chains 23 for convenience of manipulation. Thedamper is held in its adjusted position through the medium of a spring24 which surrounds the damper pivot.

After the device has been placed. in position within the flue, thedamper 20 is opened so as to permit the escape of smoke and gases whenthe fire is first started. The damper may thereafter be partly or whollyclosed so as to prevent the passage of heated gases through the smokepassage. The heated gases will then enter the inner casing through thebottom thereof. passage will be retarded due to the character of theretarding member, so that instead of passing rapidly off through theflue, the heat will radiate from the casing 12.

By the use of the invention. the cost of operation of the stove orheater is materially reduced. as a much greater amount of heat can beobtained from a given amount of fuel and at the same time the fire maybe effectually regulated for the proper consumption of fuel.

The invention is susceptible of various changes in its form, proportionand novel its upward (lentils of construction nlnl the right is hereinreserved to make such Changes as properly [all within @119; St; pe ofthe ggpended claim.

What I clail'n In a device of the character described. a casing adaptedtobe interposed in a stove pipe, :1 member within the casing and(lividing the interior thereof into two passage open at their entls, 2ttubular member mounted within one passage and open at its upper amllower ends, a. s regggrd tgggnggembei seehfed' to saifl tn'bu itr manat, and'means for optionally closing and opening the other passage.

In testimony whereof I allix my signature. 15

THOMAS PITSANIS.

